Java Installation

[Guest]

Hi, I just installed latest version of Java: Java 5.0, every thing works
fine, but I looked at Ad + Remove Programs, and I see two java files:
J2SE Development kit 5.0 Update 1---- 264 mg
J2SE Runtime Enviroment 5.0 Update 1----148mg
My cuestion is: Does Java need these 2 big files or just one?
Thanks.

 

[David H. Lipman]

Since it isn't a Microsoft product, why not just ask SUN ?

--
Dave




| Hi, I just installed latest version of Java: Java 5.0, every thing works
| fine, but I looked at Ad + Remove Programs, and I see two java files:
| J2SE Development kit 5.0 Update 1---- 264 mg
| J2SE Runtime Enviroment 5.0 Update 1----148mg
| My cuestion is: Does Java need these 2 big files or just one?
| Thanks.
| --
| Jfern

 

[Test Man]

Firstly, I wouldn't rely on the Add/Remove Programs applet to accurately
determine the size (even the applet says so). Secondly, you should only
have the Runtime Environment installed if you need it for IE. The
Development kit is something else entirely and you would've known it when
you downloaded it. The Runtime Environment is a 15MB download (the offline
version) and is found on this page
http://java.sun.com/j2se/1.5.0/download.jsp make sure you only download the
Runtime Environment (JRE), NOT the Development Kit (JDK, they look very
similar but if you read the text, you'll know).

 

[Dick Sutton]

Jack,

Both are fine. Like Test Man says, don't rely on the 'install package'
size. The actual code loaded may be much less. You will need the 'Runtime
Environment' (interpreter) to run any Java programs you write.

Since Java isn't a 'real' compiler producing native object code, but,
instead produces 'byte code", the system needs an 'interpreter' to run this
bytecode (also a reason why Java is slower than other languages). However,
being interpreted makes it executable on several different platforms (if you
have the interpreter or 'Runtime Environment' installed on that platform).

Dick

 

[Tim Slattery]

Hi, I just installed latest version of Java: Java 5.0, every thing works
fine, but I looked at Ad + Remove Programs, and I see two java files:
J2SE Development kit 5.0 Update 1---- 264 mg
J2SE Runtime Enviroment 5.0 Update 1----148mg
My cuestion is: Does Java need these 2 big files or just one?

If you want to write Java programs or applets, then you need the
development kit. If you want to run Java programs or applets, then you
need the Runtime Environment.

 

[Guest]

That anwsered my cuestion.
Many thanks to all.

If you want to write Java programs or applets, then you need the
development kit. If you want to run Java programs or applets, then you
need the Runtime Environment.